CVE-2026-50628

Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control

Published: Jun 12, 2026Updated: Aug 7, 2026 Sources: CVE List NVDCWE-20

9.8CRITICAL

Description

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-20 CWE-358

Affected Products

apache

oss-project·USaka apache httpd, apache http server

cxfLibraryLibrary

OSS Libraries / generic-library

Apache Software Foundation

oss-project·USaka apache foundation

Apache CXFLibrary

OSS Libraries / generic-library

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://lists.apache.org/thread/vb3ho8lf228gh90m1fpnohf2008xrdxk

lists.apache.org

http://www.openwall.com/lists/oss-security/2026/06/11/5

openwall.com

https://access.redhat.com/errata/RHSA-2026:37390

access.redhat.com

and 3 more references View all →

News mentions

Important Apache CXF Vulnerabilities Demand Immediate Action
en-us·Daily CyberSecurity (securityonline.info)·Jun 13, 2026 Patch Apache CXF web-app

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